I absolutely love this feature!!! I'm so excited about it!!! I can't wait to see what new items come out! I really hope we'll see some for Troth Tokens as well.
My only slight complaint is that items are locked to the room. I wish we could have things get "cut off" on the edges, like a window only being half visible. Rooms are fairly small (which is understandable!) so letting items go off the canvas would help add a lot of customization.
And lastly, I agree with the "buy all" button suggestion! It would make things a lot easier. Themed room items would be awesome as well! Underwater, forest, river, city, night sky, animals... there's so much cool stuff that could be done with themes.